Compilare: user.cpp: In function ‘int main()’: user.cpp:16:20: warning: unused variable ‘x’ [-Wunused-variable] for(int i = 1, x; i <= n; ++i) ^ user.cpp:32:46: warning: ‘dr’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << bestSum << " " << st << " " << dr; ^ user.cpp:32:31: warning: ‘st’ may be used uninitialized in this function [-Wmaybe-uninitialized] fout << bestSum << " " << st << " " << dr; ^ user.cpp:24:25: warning: ‘idx’ may be used uninitialized in this function [-Wmaybe-uninitialized] st = idx + 1; dr = i; ^